$OpenBSD: patch-include_SDL_opengl_h,v 1.2 2012/03/02 09:10:38 dcoppa Exp $
--- include/SDL_opengl.h.orig	Mon Oct 12 19:07:19 2009
+++ include/SDL_opengl.h	Thu Sep  2 19:02:50 2010
@@ -35,7 +35,11 @@
 #endif
 #ifndef NO_SDL_GLEXT
 #define __glext_h_  /* Don't let gl.h include glext.h */
+#ifndef GL_ARB_shader_objects
+#define GL_ARB_shader_objects 0
+#define undef_GL_ARB
 #endif
+#endif
 #if defined(__MACOSX__)
 #include <OpenGL/gl.h>	/* Header File For The OpenGL Library */
 #include <OpenGL/glu.h>	/* Header File For The GLU Library */
@@ -48,6 +52,10 @@
 #endif
 #ifndef NO_SDL_GLEXT
 #undef __glext_h_
+#ifdef undef_GL_ARB
+#undef GL_ARB_shader_objects
+#undef undef_GL_ARB
+#endif
 #endif
 
 /** @name GLext.h
